Today I'm reviewing my favorite Thermos insulated stainless steel travel cups. I use mine every day, whether I'm at home, at work, or on the road. Staying hydrated is important to everyone's health and wellness. If you're on a keto diet or low carb diet, you need to drink even more water to help avoid damage to your kidneys. So, to help me drink enough water daily, I keep a Thermos Stainless King Vacuum-insulated Stainless Steel Travel Tumbler and a Thermos stainless steel hydration bottle next to me so I can take sips of water and hot or cold decaf or green tea throughout the day and refill the containers as needed.
Several years ago, my husband and I decided to replace our motley collection of plastic and probably BPA-laden water bottles and travel mugs (most of them free swag from employers and trade shows) with high quality, vacuum-insulated stainless steel bottles and mugs that had the features we care about.
We really liked our new Thermos stainless steel hydration bottles, so we ordered two Thermos Stainless King Travel Tumblers to try out. We loved them so much that we ordered three more, one for my husband's office, one for my office and an extra for home. So, now have five of these wonderful stainless steel travel cups, in Electric Blue, Cranberry, Midnight Blue, Raspberry and Matte Black. (The Matte Black cup isn't in my photos because my husband keeps it at his office.)
Prefer a Travel Mug With a Handle?
The Thermos Stainless King Travel Mug is identical to the travel tumbler except it has a handle. |
| Thermos Stainless King Travel Mug 16 Ounces - Pine Green - photo courtesy of Amazon.com |
Why I Love Thermos Stainless King Travel Tumblers and Travel Mugs
Large Capacity
Both the stainless steel travel tumbler and the travel mug version with the handle hold a generous 16 ounces of your favorite hot or cold beverage. Both the tumbler and the mug are 7.8" tall and 3.3" wide (excluding the handle on the travel mug), tapering down to 2-5/8" wide at the base so they fit in most cup holders.Keeps Hot Drinks Hot and Cold Drinks Cold
I love being able to use my Thermos travel tumbler for hot or iced tea or coffee, hot or chilled apple cider, hot cocoa, cold milk or any other non-carbonated drink I'm in the mood to drink.Thermos' Vacuum Insulation Technology
The most important criterion in choosing a travel mug or tumbler is how long it can maintain the temperature of whatever beverage you put into it. Thermos’s vacuum insulation technology and double-wall stainless steel construction mean that hot drinks stay hot for up to 7 hours and cold drinks stay cold for up to 18 hours if you preheat or pre-chill the travel tumbler with hot or cold water for 5 to 10 minutes just before filling it with your beverage.Travel Tumbler Exterior Stays at Room Temperature
Whether you fill it with a hot or cold beverage, the outside temperature of the tumbler is not affected by the temperature of its contents. (Of course, if you take it outside on a very hot or very cold day, the exterior of any metal container will get hotter or colder, based on the temperature of its environment.)No "Sweating" Even When Filled With Ice-Cold Drinks
Even if you fill it with ice cubes and a cold beverage, this stainless steel travel tumbler doesn't "sweat" — i.e., condensation doesn't form on the outside of the mug. So, I never have to use a coaster under this tumbler to protect my antique mahogany dining table, coffee table or end tables. |
| The DrinkLock sealing lid has two openings |
Leak-proof Lid
Thermos' DrinkLock sealing lid makes this travel mug leak-proof (unless you don't close the lid properly or reassemble it correctly after taking it apart for cleaning).Dual Openings for Easy Access
There are slots on opposite sides of the lid that are controlled by a single lever. Sliding the lever to the side opens or closes both drinking slots simultaneously. So, when you pick up this travel tumbler, one of the openings will be no more than 1/4 turn away from your mouth.Built-in Tea Bag Hook
The underside of the lid has a clever built-in hook for wrapping a tea bag string around or attaching the chain of a loose-leaf tea infuser.Attractive and Functional Design
This vacuum-insulated stainless steel travel tumbler's graceful shape not only looks good but also feels good. The narrower "waist" (where the Thermos logo is) makes it easier for my small hand to hold this wide cup securely. Hand-washing is recommended and the surface colors and finishes stay looking great for years if you don't put these mugs in the dishwasher. There's also a great selection of colors to choose from:- Electric Blue (AKA Royal Blue)
- Cranberry
- Midnight Blue
- Raspberry
- Stainless Steel (Matte)
- Pine Green
- Army Green
- Cranberry
- Matte Black
- Smoke (Grey)
Follow the Care and Use Instructions to Enjoy Your Thermos Stainless Cups For Many Years
We bought the oldest of our Thermos travel tumblers, the Cranberry and Midnight Blue ones, in 2015. As you can see, after four years they've held up extremely well. However, to keep your Thermos travel tumbler or mug looking and functioning well, it's important to follow the manufacturer's care and usage instructions.Hand Wash Your Cup in Warm, Soapy Water
Although these Thermos stainless steel travel tumblers and mugs are top-rack dishwasher safe in terms of their function, the company recommends hand washing them with mild soap and warm water to preserve their attractive appearance. |
| Worn finish on bottom edges of Cranberry cup after dishwasher vs. like-new finish on hand washed blue cup |
Fortunately, the finish on the sides of the Cranberry tumbler still looks fine and the bottom hasn't gotten any worse since I went back to hand washing it. You can see in the photo that the bottom of my Royal Blue cup, which has always been hand washed, still looks like it did the day it arrived from Amazon.
I hand wash my Thermos travel tumblers with mild yet effective sulfate-free Puracy Natural Liquid Dish Soap, a soft sponge and long-handled OXO Good Grips Bottle Brush.
Don't Use Cleansers That Are Abrasive or Contain Chlorine Bleach
Abrasive cleansers (including dishwasher detergents), scrubbing sponges, etc., can dull or even wear away the finish on your Thermos travel tumbler or mug. (That is exactly what happened to the bottom of my Cranberry cup after I washed it in the top rack of my dishwasher a few times.)The company also says not to use bleach or any products containing chlorine on these containers. Over time, some beverages, such as tea, can stain the gasket and seal if the lid is not washed promptly and thoroughly. Fortunately, replacement gaskets and seals are available.
If You Disassemble the Lid For Cleaning, Make Sure to Reassemble It Correctly
I don't disassemble the lid every time I wash my travel tumbler, but I do so fairly frequently to make sure I've cleaned it thoroughly. If you don't reassemble it correctly, your travel mug won't be able to maintain the temperature of your beverages as well and the lid may leak. I highly recommend reading and following the Thermos Vacuum Insulated Mug and Tumbler Care and Use Guide.Thermos Stainless King vacuum-insulated stainless steel travel tumblers and mugs reviewed by Margaret Schindel
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